DIFF Subgroup
C01B 33/32 Alkali metal silicates ( , C01B33/26 take precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Alkali metal silicates
CPC: Alkali metal silicates ( , C01B33/26 take precedence)
Full Title
Full titles differ between systems:
IPC:
Silicon; Compounds thereof > Silicates > Alkali metal silicates
CPC:
Silicon; Compounds thereof ( C01B21/00, C01B23/00 take precedence; persilicates C01B15/14; carbides C01B32/956) > Silicates (persilicates C01B15/14 ) > Alkali metal silicates ( , C01B33/26 take precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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